Allow null "updated" or "created" timestamps #889

	name: Test WorkFlow

	on:
	push:
	branches: [main]
	pull_request:
	branches: [main]

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]

	steps:
	- name: 🛎️ Checkout
	uses: actions/checkout@v4
	with:
	ref: ${{ github.event.pull_request.head.ref }}
	repository: ${{ github.event.pull_request.head.repo.full_name }}
	- name: 🐍 Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}
	- name: 🦾 Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install ".[dev]"
	- name: 🧹 Check code quality
	run: \|
	make check_code_quality
	- name: 🧪 Run tests
	run: "python -m unittest"

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